Ohhh... That's Where I Was?!

The partying pop star mom popped into a convenience store last night and checked out the latest gossip on her life by skimming through the current issue of Us Weekly, which features her and new boytoy Isaac Cohen on the cover.

After figuring out where she'd been for the past week, America's favorite trainwreck then grabbed a Red Bull, and spent the evening with friends, cruising the streets of L.A. in her convertible Mercedes.